Note 12 - Advances From the Federal Home Loan Bank and Other Borrowings (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 30, 2016
Federal Home Loan Bank Advances Funding Available as Percent of Assets	35.00%
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	$ 234,217,000
Advances from Federal Home Loan Banks	81,548,000	$ 68,261,000
Pledged Financial Instruments, Not Separately Reported, Securities for Other Debt Facilities	0	0
Federal Reserve Bank Advances	$ 0	$ 0
Debt, Weighted Average Interest Rate	1.10%	1.05%
Short-term Debt, Average Outstanding Amount	$ 78,894,000	$ 51,367,000
Short-term Debt, Maximum Month-end Outstanding Amount	92,436,000	72,716,000
PNC Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	7,000,000
Federal Funds Purchased	0	0
Zions Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	10,000,000
Federal Funds Purchased	0	0
Stockman Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity	7,000,000
Federal Funds Purchased	0	3,590,000
PCBB [Member]
Line of Credit Facility, Maximum Borrowing Capacity	10,000,000
Federal Funds Purchased			$ 0
New Markets Tax Credit Loan [Member]
Other Borrowings	$ 865,000	$ 865,000
Debt Instrument, Interest Rate During Period	1.00%

Total Federal Home Loan Bank funding line available as a percent of total assets.

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Amount of outstanding Federal Reserve Bank Advances.

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Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

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-Publisher FASB
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-SubTopic 470
-Section 45
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The average effective interest rate during the reporting period.

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Weighted average interest rate of debt outstanding.

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Amount of short term borrowing where a bank borrows, at the federal funds rate, from another bank.

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Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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The carrying amount as of the balance sheet date for the aggregate of other miscellaneous borrowings owed by the reporting entity.

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The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for debt facilities other than FHLB loans, repurchase agreements and letter of credit arrangements, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party.

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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, average borrowings during the period.

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For the form of debt having an initial term of less than one year or less than the normal operating cycle, if longer, maximum month-end borrowings during the period.

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